Journal of fish biology最新文献

{"title":"Spatio-temporal assessment of nearshore fish communities in a temperate estuary using functional and community metrics for restoration and management.","authors":"Zoe Morrall, George P Balchin, Ian Hendy, Jenifer Lewis, Dominic Longley, Nick Rogers, Gordon Watson, Joanne Preston","doi":"10.1111/jfb.70171","DOIUrl":"https://doi.org/10.1111/jfb.70171","url":null,"abstract":"<p><p>Understanding the structure and function of estuarine fish communities is essential for guiding ecosystem-based management and restoration. This study investigated long-term patterns in fish community composition, abundance, species richness and estuarine use across 15 nearshore sites within three estuaries and the Isle of Wight, located in the Solent, a large temperate estuarine system in southern England. Using a 12-year dataset (2007-2018) of biannual seine net surveys, we applied traditional community metrics alongside functional guild classifications and Fish Estuarine Association Scores (FEAS) to assess spatio-temporal variation and estuarine dependency. A total of 55 species were recorded, with six species (Atherina presbyter, Dicentrarchus labrax, Pomatoschistus microps and Chelon auratus and the family Clupeidae) accounting for 96% of individuals. Marine migrants and estuarine residents dominated the assemblage, indicating strong connectivity between estuarine and coastal habitats. While fish abundance declined significantly over time, species richness and community composition varied across seasons, tidal states and spatial scales. Sites and catchments differed markedly in FEAS, with some areas supporting species more dependent on estuarine habitats. These results highlight the importance of multisite, seasonal monitoring and the value of trait-based metrics in identifying nursery habitats and guiding restoration. The FEAS approach, applied retrospectively to historical data, offers a practical framework for setting ecological baselines and prioritising functionally important estuarine areas under real-world monitoring constraints.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144794693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights into the molecular response mechanisms of fasting stress and refeeding in channel catfish (Ictalurus punctatus) through transcriptome and histological analysis.","authors":"Yongqiang Duan, Wenping Zhang, Hongyan Liu, Minghua Wang, Liqiang Zhong, Ju Liu, Xiaohui Chen, Shiyong Zhang","doi":"10.1111/jfb.70164","DOIUrl":"https://doi.org/10.1111/jfb.70164","url":null,"abstract":"<p><p>Throughout their life cycles, many fish alternate between periods of fasting and feeding due to the temporal and geographical variability of food availability in aquatic environments. The ability to adapt to fasting and restore internal balance after refeeding is fundamental to the long-term survival and symbiotic relationships of aquatic species. However, our understanding of the mechanisms by which the fish adapt to fasting and refeeding remains limited. We looked at the growth performance, intestinal and liver histology, and liver gene expression patterns of channel catfish, a significant commercial species, during three weeks of fasting stress and three weeks of refeeding, respectively, in order to clarify the molecular response mechanisms to these two events. Our study revealed that fasting significantly impacts growth, histological characteristics and physiological metabolism. During the fasting period, catfish growth performance was greatly inhibited, but growth compensation was observed after refeeding. Histological analysis showed that liver and intestinal tissues experienced varying degrees of apoptotic injury during fasting, with a modest number of TUNEL-positive cells still present in the liver after refeeding. We identified 787 significant differentially expressed genes (DEGs) in the control group in three weeks (CG3) groups versus the fasting-refeeding group inthree week (EG3) group, while only 35 DEGs were defined in the CG6 group versus the EG6 group. Gene Ontology functional annotation and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses suggested that fasting stress affected gene expression related to the mitotic cell cycle, cell cycle processes, amino acid metabolism, steroid biosynthesis, fatty acid metabolism and immune responses. Metabolism and cellular process response genes were significantly downregulated in the fasting group. Significant alterations in the expression levels of genes related to metabolism and apoptosis were validated by quantitative Real-time PCR (qRT-PCR). This study provides insights into the physiological mechanisms underlying fish adaptation to fasting or nutritional deficiency stress, shedding light on how channel catfish respond to fasting stress and refeeding.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144794691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sequence capture analysis determines spatial and temporal stock contributions to a mixed coastal anadromous fishery.","authors":"Kristopher J Wojtusik, David L Berlinsky, Linas W Kenter, Adrienne I Kovach","doi":"10.1111/jfb.70168","DOIUrl":"https://doi.org/10.1111/jfb.70168","url":null,"abstract":"<p><p>Employing a citizen science model of partnerships with recreational and commercial fishers, we collected 5298 fin-clip samples of striped bass Morone saxatilis over a 2-year period and a broad geographic area that encompassed a majority of the species migratory range. Using genetic stock identification with a sequence capture approach, we determined that the Chesapeake Bay was the major contributor (80%-88% proportional contributions) to the mixed coastal M. saxatilis fishery, in all seasons, in US northwest Atlantic waters from coastal southern Maine to the New York Bight. The Hudson River was the only other substantial contributor (10%-18%), and the Roanoke River contributed <2%. These patterns were consistent across years (2018-2019), seasons (spring, summer and fall) and maturity status of the fish. Our findings show the power of an efficient, affordable genomic tool and collaboration with an enthusiastic fishing community to inform management of a recreationally valuable fishery.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144794692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Put it in reverse! Captivating deep-sea footage reveals the mysterious movements of abyssal fish","authors":"William Bernard Perry","doi":"10.1111/jfb.70163","DOIUrl":"https://doi.org/10.1111/jfb.70163","url":null,"abstract":"<p>There are many common myths about fish, spanning from the 3-s memory of goldfish to shoals of hungry Amazonian piranha consuming people in a frenzy, both of which have been firmly debunked (Haddad &amp; Sazima, <span>2003</span>; Sibeaux et al., <span>2022</span>). However, some misconceptions come from more reasonable observations, such as ‘fish cannot swim backwards’. For most (fusiform) fish that people encounter, moving backwards is not very common, given that it is clumsy and inefficient, relying heavily on the pectoral fins (Blake, <span>2004</span>). However, although most fish do predominantly swim forwards, there are always exceptions to the rule, and nowhere do the rules seem to be broken more often than in the deep sea.</p><p>One of the main drivers of how fish move is body form. Backward swimming is commonly seen in elongated fish, as this body form facilitates such movement, as seen in fish such as lancelet, hagfishes, lampreys and eels. The latter lends its name to the term ‘anguilliform swimming’, which is movement through body undulation in elongated fish, that can be put in reverse with ease. What connects this with the deep sea is that in marine environments, the degree of body form elongation increases with depth, which is most apparent in Gadiformes (cod) and Osmeriformes (smelts and allies) (Neat &amp; Campbell, <span>2013</span>). As a result, many deep-sea fish are capable of swimming backwards, an ability that Priede and Jamieson (<span>2025</span>) show in this issue with captivating new footage (Video 1).</p><p>Using baited camera landers at depths of 4500–6300 m, Priede and Jamieson (<span>2025</span>) filmed the inhabitants of the Pacific Ocean floor, hungry for a mackerel supper. What followed did not disappoint, with a spectacular array of the weird and wonderful coming out for a bite to eat, with backward swimming using reverse undulation observed in four species: the cutthroat eel (<i>Ilyophis robinsae</i>), abyssal grenadier (<i>Coryphaenoides yaquinae</i>) and cusk-eels (<i>Bassozetus</i> sp. and <i>Barathrites iris</i>). In their article, Priede and Jamieson (<span>2025</span>) highlight the advantage of backward swimming, as it allows the fish to return safely along a recently travelled path, an important consideration when manoeuvring through an environment without any visual information. The footage also further supports recent studies highlighting the slow pace of life in deep-sea environments (Woodworth et al., <span>2025</span>).</p><p>Getting a glimpse into the deep sea never fails to amaze, especially when it is in such high definition. Footage like that collected by Priede and Jamieson (<span>2025</span>) is also a stark reminder of how alien Earth's largest habitat appears, and how much more we still have to learn about this extensive frontier.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":"107 1","pages":"5-6"},"PeriodicalIF":2.0,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jfb.70163","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biology, ecology and conservation of the IUCN endangered sciaenid Argyrosomus japonicus in global estuarine and marine waters.","authors":"Alan K Whitfield, Marc H Griffiths","doi":"10.1111/jfb.70166","DOIUrl":"https://doi.org/10.1111/jfb.70166","url":null,"abstract":"<p><p>Argyrosomus japonicus, a widespread estuarine and coastal sciaenid, is listed as endangered on the International Union for Conservation of Nature (IUCN) Threatened Species Red List. In this review, we conduct an updated assessment of the global status of A. japonicus, an important commercial, recreational and artisanal fisheries species. A wide variety of topics are covered, including a synthesis of our knowledge on A. japonicus reproduction; the larval, juvenile and adult life stages; physiology and behaviour; growth and maturity; food and feeding ecology; predators and parasites; drivers of population status; and the evolution and genetics of the species. Adaptation to low salinities and occupation of estuarine nursery areas by this species may have facilitated the evolution of late maturity and longevity, largely through reduced natural mortality, particularly for juveniles. However, unsustainable fishing mortality and estuarine nursery area degradation have compromised the stock status of A. japonicus. Four management measures are highlighted for the future: (1) maintaining spawning stock biomass and reproductive capacity by restricting fisheries that target spawning aggregations, (2) reducing negative anthropogenic impacts on estuaries, (3) facilitating estuarine protection areas for known nursery habitats of the juveniles and (4) reducing juvenile fishing mortality by implementing suitable size limits and bag limits.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144784415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Northern cod (Gadus morhua) movement: insights from acoustic telemetry and genomics.","authors":"M Lisette Delgado, Nicole Smith, Frederick Whoriskey, Steve Devitt, Emilie Novaczek, Corey J Morris, Tony Kess, Ian Bradbury, Sara Iverson, Paul Bentzen, Daniel E Ruzzante","doi":"10.1111/jfb.70167","DOIUrl":"https://doi.org/10.1111/jfb.70167","url":null,"abstract":"<p><p>Knowledge of the timing and diversity of fish movements within a commercially exploited stock complex is required to ensure the sustainability of fisheries. Although migration can be driven by environmental factors, genomic mechanisms also play an important role in this complex life-history trait. The northern cod (Gadus morhua) stock complex, off the coast of Newfoundland and Labrador, once supported the largest fishery in the world. Like other Atlantic cod stocks, northern cod is believed to include components with diverse migratory patterns. Here we used telemetry to track the movement of 847 acoustically tagged northern cod caught and released from inshore and offshore sites. Four different migratory phenotypes were distinguished: (i) cod that moved along the Northwest Atlantic Fisheries Organization (NAFO) Divisions 2J3KL (3P4RS), (ii) cod that remained year-round mainly north of the Notre Dame Channel (NAFO Divisions 2J and north of 3K), (iii) cod that remained year-round mainly south of the Notre Dame Channel (NAFO Divisions south of 3K and 3L) and (iv) cod that remained year-round inshore. Whole-genome sequences of 77 tagged cod showed no relation between chromosomal inversions and the four migratory phenotypes described here but revealed genomic regions encoding for hormone receptors that show differentiation between cod detected north versus south of the Notre Dame Channel during the peak spawning season. This study demonstrates the synergistic value of an interdisciplinary approach that combines genomic with acoustic telemetry data along with life-history information (i.e., spawning time) to elucidate the complex spatial-temporal dynamics of a widespread marine species under exploitation.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144784416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rogadius azizahae, a new flathead (Perciformes: Platycephalidae) from the South China Sea.","authors":"Tun Nurul Aimi Mat Jaafar, Ying Giat Seah, Hisashi Imamura, Hiroyuki Motomura, Mizuki Matsunuma","doi":"10.1111/jfb.70135","DOIUrl":"https://doi.org/10.1111/jfb.70135","url":null,"abstract":"<p><p>A new flathead Rogadius azizahae (Platycephalidae) is described on the basis of five specimens [102.5-107.8 mm standard length (SL)] collected off the east coast of the Malay Peninsula, southern South China Sea. The new species is morphologically similar to Rogadius mcgroutheri Imamura, 2007, known from the Coral Sea off eastern Australia and New Caledonia, the two species sharing most diagnostic characters, including a minute, weakly developed antrorse spine on the preopercle [vs. a long, stout antrorse spine present in Rogadius asper (Cuvier in Cuvier & Valenciennes, 1829), Rogadius fehlmanni Knapp, 2012, and Rogadius pristiger (Cuvier in Cuvier & Valenciennes, 1829)]; usually a single preocular spine [vs. 2-4 in R. fehlmanni and 2-5 in Rogadius welanderi (Schultz in Schultz et al., 1966)]; no accessory spines along the preocular spine base [vs. present in R. fehlmanni and Rogadius serratus (Cuvier in Cuvier & Valenciennes, 1829)]; and no longitudinal black band on the caudal fin (vs. present in Rogadius patriciae Knapp, 1987). The new species can also be distinguished from R. mcgroutheri by having 11 dorsal-fin soft rays [vs. 11 or 12, modally 12 (25 of 30 specimens) in the latter]; 7 lower gill rakers [vs. 5-7, modally 6 (21 of 30)]; the caudal fin brown basally, broadly whitish (semitranslucent) anteriorly and almost entirely brown on the posterior half (vs. ca. 4 irregular variously sized vertical rows of black blotches); the pelvic fin with ca. 6-8 rows of narrow, wavy black bands or dotted lines (vs. largely brownish, with no defined bands or spots); a relatively large orbit, its diameter 12.4-12.8 (mean 12.6)% SL [vs. 11.4-12.3 (11.7)% SL in 100-110 mm SL specimens]; and relatively narrow interorbital region, its width 1.3-1.5 (mean 1.4)% SL [vs. 1.7-2.2 (1.9)% SL]. DNA barcoding also indicated distinct divergence (14.3-14.4% uncorrected p-distance) between the new species and R. mcgroutheri. A revised key to species of Rogadius is provided.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144775491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genes, fish and fisheries: translating science into policy.","authors":"Gary R Carvalho","doi":"10.1111/jfb.70153","DOIUrl":"https://doi.org/10.1111/jfb.70153","url":null,"abstract":"<p><p>The 2024 Annual Symposium of the Fisheries Society of the British Isles reviewed the burgeoning impact of 'omics' technologies on fish ecology, management and forecasting. As with life sciences more generally, major advances in speed, cost-effectiveness and breadth of applications in 'omics' has had profound societal and environmental impacts. This article presents a synthesis of when, how and why genetics and genomics have impacted marine fisheries management and uptake by policy makers. After a brief historical perspective on genetics in fisheries and salient advances, including a critique of the traditional disjunct in approaches, three case studies are used to demonstrate impact on policy: real time management of mixed stock fisheries in demersal Atlantic cod (Gadus morhua) and anadromous sockeye salmon (Oncorhynchus nerka), and rapid estimation of population abundance in southern bluefin tuna (Thunnus maccoyii) using genetic-based tagging. Common features underpinning successful impact from these and cited studies were examined, including a consideration of the impactful population-level EU traceability programme, FishPopTrace. Among key commonalities of success were the significant role of demand-led needs, genomic automation, cost-effectiveness and speed of processing long-term collaborative programmes in enabling establishment of comprehensive spatial and temporal databases, and effective engagement with stakeholders and end-users. While current trends show a significant upsurge in applications and impacts, especially in application of environmental DNA, there remains a need to foster ongoing fundamental science with large-scale policy-led, targeted collaborative programmes, combined with enhanced visibility of exemplar case studies.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144775490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploration of selection methods for optimal juveniles in hatchery-reared masu salmon (Oncorhynchus masou).","authors":"Yoshinari Uematsu, Michihisa Abe, Takashi Yada, Hiroyuki Matsuda, Arimune Munakata","doi":"10.1111/jfb.70067","DOIUrl":"https://doi.org/10.1111/jfb.70067","url":null,"abstract":"<p><p>To explore selection methods for juveniles with favourable characteristics in masu salmon (Oncorhynchus masou), we tested two approaches: selection based on position in a waterway and selection based on swimming layer in a round tank. After selection, juveniles were reared in identical environments in two tanks until the smoltification season (spring of the following year), and their characteristics - including standard length, weight, condition factor, sex and smoltification rate - were observed. In the waterway selection experiment (Experiment 1), 284 juvenile broodstock fish from the Shiribetsu River strain were placed in an artificial waterway, with 67 individuals selected from both upstream and downstream groups. In the swim layer selection experiment (Experiment 2), 222 juvenile broodstock fish from the Isatomae River strain were used in a round tank, with individuals selected from the surface and bottom groups. The results indicated that in Experiment 1, juveniles positioned downstream exhibited a higher smoltification rate and female ratio compared to those positioned upstream. In Experiment 2, the bottom group had a significantly higher female ratio than the surface group. These findings may be attributed to the territorial behaviour of juveniles in enclosed spaces, where dominance and subordination influence spatial positioning. Dominant individuals likely occupied upstream and surface areas in the artificial waterway and tank, respectively. In masu salmon, male juveniles with high metabolic rates tend to establish dominance in enclosed spaces and exhibit early maturation without undergoing smoltification. Therefore, selection methods based on waterway position and swimming layer may be effective in identifying juvenile groups with a higher smoltification rate prior to the smoltification season. If so, these methods could facilitate the selective identification of smoltifying individuals for release programmes aimed at promoting ocean-migratory forms.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144760257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The taxonomic status of Farlowella colombiensis Retzer & Page 1997 with comments on species of the F. acus species group (Loricariidae: Loricariinae).","authors":"Omar Eduardo Melo-Ortiz, Michael E Retzer, Saúl Prada-Pedreros, Gustavo A Ballen","doi":"10.1111/jfb.70063","DOIUrl":"https://doi.org/10.1111/jfb.70063","url":null,"abstract":"<p><p>The genus Farlowella has been historically challenging, in part due to the difficulty in defining diagnostic characters for defining and identifying the species. Farlowella colombiensis is one such example, whose diagnostic characters are based on caudal-fin colour pattern, ventral pattern of body cover and anatomical details of the head, such as the arrangement of odontodes and the presence/absence of dorsomedian ridge. We herein reassess the taxonomic status of this species against congeners of the F. acus species group (F. acus, F. martini, F. mitoupibo, F. venezuelensis and F. vittata). We found no significant differences between F. colombiensis and F. acus in morphometric, meristic and colouration pattern, therefore rendering Farlowella colombiensis a junior synonym of Farlowella acus. We provide remarks on different species of the F. acus group in Colombia, as well as a description of sexual dimorphism in the genital papilla for the first time in the subfamily. We also provide a key to the species of the F. acus species group in Colombia.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144760281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}